hcs301 Microchip Technology Inc., hcs301 Datasheet - Page 17
hcs301
Manufacturer Part Number
hcs301
Description
Keeloq Code Hopping Encoder
Manufacturer
Microchip Technology Inc.
Datasheet
1.HCS301.pdf
(30 pages)
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FIGURE 7-3:
2001 Microchip Technology Inc.
Entire Window
rotates to eliminate
use of previously
used codes
SYNCHRONIZATION WINDOW
(resynchronization)
Double Operation
(32K Codes)
(32K Codes)
Blocked
Window
Window
Single Operation
(16 Codes)
Stored
Synchronization
Counter Value
Window
HCS301
DS21143B-page 17